Premium Tier
Limited Warranty
Navien Water Heater Warranty
Bottom line (2026): Navien offers a 15-year limited warranty on its water heater — transferable to new owners, with labor covered for the first 2 year(s). Scores 80/100 on the HomeScore Warranty Index, rated excellent for the premium-tier water heater category.
15 yr
Base Warranty
15–20 yr
Expected Lifespan
$2,800–$6,500
Price Range
NPE-240A2
Top Model
Warranty Score
What's Covered
- Tank (against leaks)
- Heating elements
- Gas burner assembly
- Thermostat
- Anode rod (some brands)
Common Exclusions
- Scale/sediment damage
- Improper installation
- Thermal expansion damage
- External corrosion
- Commercial use
Warranty Details
| Coverage Type | Limited Warranty |
| Duration | 15 years |
| Transferable | Yes (fee: $50–$150) |
| Labor Coverage | Yes — first 2 year(s) |
| Registration Required | Yes — within 60 days from purchase |
| Extended Warranty | Available ($150–$400) |
| Country of Origin | South Korea |
Warranty Claim Tips
- Most tank water heater warranties are prorated after year 6 — understand your depreciation schedule
- Tankless units often require annual flushing documentation for warranty coverage
- Keep your receipt and model/serial number in a safe place
HomeScore Pro Tips
- A failed water heater with a voided warranty costs $2,000–$5,000 to replace including labor
- Installing an expansion tank may be required by code and your warranty simultaneously
- Anode rod replacement every 3–5 years extends tank life and protects your warranty
Compare Water Heater Warranties
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